Michael, although I have plenty of Aramith Measle Pro Cups, Brunswick Blue Circles, and Aramith logo cue balls, the balls I am currently using in our poolroom for our everyday customers are the Aramith red circle cue balls.
They just seem to be easier to keep looking nice and clean than any of the other balls. I clean all our balls once a week. The amount of miscue marks on the cue balls after one week is staggering, due to nearly all our customers being beginner / recreational level players, but the red circles don't look nearly as bad as the measle balls look after one week. We do use Measle balls for our tournaments, I use a Measle ball when practicing or playing 9/10 ball, but I usually use a Blue Circle when I'm playing or practicing 14.1. For our better players that wish to play/practice with a measle ball, I do keep them available to them and they know to ask for them.